/* ============================================
   HHUDDL.com - Design System
   ============================================ */

/* CSS Custom Properties */
:root {
    --ember-orange: #E8642C;
    --charcoal-huddle: #1C1C28;
    --warm-slate: #2E2A3A;
    --bone-white: #F2EDE4;
    --dusk-indigo: #4A4268;
    --electric-tangerine: #FF6B35;
    --muted-lavender: #8B82A8;

    --font-display: 'Archivo Black', sans-serif;
    --font-primary: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --hero-letter-spacing: 0.8em;
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background-color: var(--charcoal-huddle);
    color: var(--bone-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* SVG Filters (hidden) */
.svg-filters {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* Noise Overlay */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    filter: url(#noiseFilter);
    background: var(--bone-white);
    mix-blend-mode: overlay;
}

/* ============================================
   Navigation - Radial
   ============================================ */

.nav-trigger {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--warm-slate);
    border: 2px solid var(--dusk-indigo);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.nav-trigger:hover {
    transform: scale(1.1);
    background-color: var(--dusk-indigo);
    border-color: var(--electric-tangerine);
}

.nav-trigger.active {
    background-color: var(--ember-orange);
    border-color: var(--electric-tangerine);
}

.nav-trigger-ring {
    position: absolute;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--muted-lavender);
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.nav-trigger:hover .nav-trigger-ring {
    border-color: var(--bone-white);
    transform: scale(1.15);
}

.nav-trigger.active .nav-trigger-ring {
    border-color: var(--bone-white);
    transform: rotate(90deg);
}

.nav-trigger-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ember-orange);
    transition: background-color 0.3s ease;
}

.nav-trigger.active .nav-trigger-dot {
    background: var(--bone-white);
}

/* Radial Navigation Overlay */
.radial-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.radial-nav.open {
    opacity: 1;
    pointer-events: all;
}

.radial-nav-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(28, 28, 40, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.radial-nav-items {
    position: absolute;
    bottom: 5rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.radial-nav-item {
    display: block;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--bone-white);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    transform: translateX(60px);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease, background-color 0.3s ease, color 0.3s ease;
}

.radial-nav.open .radial-nav-item {
    transform: translateX(0);
    opacity: 1;
}

.radial-nav.open .radial-nav-item[data-angle="0"] { transition-delay: 0.05s; }
.radial-nav.open .radial-nav-item[data-angle="1"] { transition-delay: 0.1s; }
.radial-nav.open .radial-nav-item[data-angle="2"] { transition-delay: 0.15s; }
.radial-nav.open .radial-nav-item[data-angle="3"] { transition-delay: 0.2s; }
.radial-nav.open .radial-nav-item[data-angle="4"] { transition-delay: 0.25s; }

.radial-nav-item:hover {
    background-color: rgba(232, 100, 44, 0.15);
    color: var(--electric-tangerine);
}

/* ============================================
   Sections - Base
   ============================================ */

.act {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* ============================================
   Concentric Rings
   ============================================ */

.concentric-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px solid rgba(74, 66, 104, 0.3);
    transform: translate(-50%, -50%);
    animation: ringPulse 6s ease-in-out infinite;
}

.ring-1 {
    width: 200px;
    height: 200px;
    animation-delay: 0s;
}

.ring-2 {
    width: 350px;
    height: 350px;
    animation-delay: 0.5s;
}

.ring-3 {
    width: 500px;
    height: 500px;
    animation-delay: 1s;
}

.ring-4 {
    width: 650px;
    height: 650px;
    animation-delay: 1.5s;
}

.ring-5 {
    width: 800px;
    height: 800px;
    animation-delay: 2s;
}

.ring-6 {
    width: 950px;
    height: 950px;
    animation-delay: 2.5s;
}

@keyframes ringPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.15);
        opacity: 0.12;
    }
}

/* ============================================
   Radial Gradient Halos
   ============================================ */

.radial-halo {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    background: radial-gradient(circle, rgba(232, 100, 44, 0.15) 0%, transparent 70%);
}

.hero-halo {
    width: 800px;
    height: 800px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.gathering-halo {
    width: 600px;
    height: 600px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.huddle-halo {
    width: 900px;
    height: 900px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(232, 100, 44, 0.2) 0%, transparent 65%);
}

.reform-halo {
    width: 700px;
    height: 700px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ============================================
   Particle Field
   ============================================ */

.particle-field,
.scatter-field {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--bone-white);
}

.particle.converge {
    animation: particleConverge var(--duration) ease-in-out infinite;
    animation-delay: var(--delay);
}

.particle.scatter {
    animation: particleScatter var(--duration) ease-in-out infinite;
    animation-delay: var(--delay);
}

@keyframes particleConverge {
    0% {
        transform: translate(var(--start-x), var(--start-y));
        opacity: var(--start-opacity);
    }
    100% {
        transform: translate(0px, 0px);
        opacity: 0.8;
    }
}

@keyframes particleScatter {
    0% {
        transform: translate(0px, 0px);
        opacity: 0.6;
    }
    100% {
        transform: translate(var(--end-x), var(--end-y));
        opacity: 0;
    }
}

/* ============================================
   Act 1: Approach - Hero
   ============================================ */

.act-approach {
    min-height: 120vh;
    background: var(--charcoal-huddle);
}

.hero-text {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    letter-spacing: var(--hero-letter-spacing);
    user-select: none;
}

.hero-letter {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    color: var(--bone-white);
    display: inline-block;
    transition: letter-spacing 0.1s ease-out;
    text-shadow: 0 0 40px rgba(232, 100, 44, 0.3);
}

.hero-tagline {
    font-family: var(--font-primary);
    font-size: clamp(0.9rem, 2vw, 1.3rem);
    font-weight: 300;
    color: var(--muted-lavender);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 2rem;
    z-index: 10;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.hero-tagline.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Act 2: Gathering
   ============================================ */

.act-gathering {
    min-height: 100vh;
    background: var(--charcoal-huddle);
}

.gathering-content {
    z-index: 10;
    text-align: center;
    max-width: 680px;
    padding: 0 2rem;
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.gathering-content.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--bone-white);
    margin-bottom: 1.5rem;
}

.section-body {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--muted-lavender);
}

/* Connecting Lines */
.connecting-lines {
    position: absolute;
    width: 80%;
    max-width: 800px;
    height: auto;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
    opacity: 0.4;
}

.connect-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    transition: stroke-dashoffset 2s ease;
}

.connecting-lines.animate .connect-line {
    stroke-dashoffset: 0;
}

/* ============================================
   Act 3: The Huddle - Core Content
   ============================================ */

.act-huddle {
    min-height: 120vh;
    background: linear-gradient(180deg, var(--charcoal-huddle) 0%, #221E30 50%, var(--charcoal-huddle) 100%);
    padding: 6rem 2rem;
}

.huddle-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    color: var(--bone-white);
    margin-bottom: 4rem;
    z-index: 10;
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.huddle-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.huddle-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    width: 100%;
    z-index: 10;
    padding: 0 1rem;
}

.huddle-card {
    position: relative;
    background: var(--warm-slate);
    border: 1px solid rgba(74, 66, 104, 0.3);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    overflow: hidden;
    transform: translateY(40px);
    opacity: 0;
    transition: transform 0.5s ease, opacity 0.5s ease, box-shadow 0.3s ease;
    margin: -1px;
}

.huddle-card.visible {
    transform: translateY(0);
    opacity: 1;
}

.huddle-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 60px rgba(232, 100, 44, 0.08);
    z-index: 2;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(232, 100, 44, 0.06) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.huddle-card:hover .card-glow {
    opacity: 1;
}

.card-title {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--bone-white);
    margin-bottom: 1rem;
}

.card-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.7;
    color: var(--muted-lavender);
}

.card-accent {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--ember-orange), var(--electric-tangerine));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.huddle-card:hover .card-accent {
    transform: scaleX(1);
}

.huddle-lines {
    top: 60%;
    opacity: 0.2;
}

/* ============================================
   Act 4: The Break
   ============================================ */

.act-break {
    min-height: 100vh;
    background: var(--charcoal-huddle);
}

.break-content {
    z-index: 10;
    text-align: center;
    padding: 0 2rem;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 1s ease, transform 1s ease;
}

.break-content.visible {
    opacity: 1;
    transform: scale(1);
}

.break-statement {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 3.5rem);
    color: var(--bone-white);
    line-height: 1.5;
    letter-spacing: 0.02em;
}

.break-emphasis {
    color: var(--ember-orange);
    display: inline-block;
    margin-top: 0.5rem;
}

/* ============================================
   Act 5: Reform
   ============================================ */

.act-reform {
    min-height: 120vh;
    background: linear-gradient(180deg, var(--charcoal-huddle) 0%, #1A1825 50%, var(--charcoal-huddle) 100%);
    padding: 6rem 2rem;
}

.reform-content {
    z-index: 10;
    text-align: center;
    width: 100%;
    max-width: 1000px;
}

.reform-heading {
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reform-heading.visible {
    opacity: 1;
    transform: translateY(0);
}

.reform-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 0 1rem;
}

.reform-card {
    position: relative;
    background: var(--warm-slate);
    border: 1px solid rgba(74, 66, 104, 0.3);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: left;
    overflow: hidden;
    transform: translateY(40px);
    opacity: 0;
    transition: transform 0.5s ease, opacity 0.5s ease, box-shadow 0.3s ease;
}

.reform-card.visible {
    transform: translateY(0);
    opacity: 1;
}

.reform-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 60px rgba(232, 100, 44, 0.08);
}

.reform-card:hover .card-glow {
    opacity: 1;
}

.reform-card-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: rgba(232, 100, 44, 0.15);
    display: block;
    margin-bottom: 1rem;
}

/* Silhouettes */
.silhouettes {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    pointer-events: none;
    opacity: 0.5;
}

.silhouette-svg {
    width: 100%;
    height: auto;
}

/* CTA Section */
.reform-cta {
    z-index: 10;
    text-align: center;
    margin-top: 5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reform-cta.visible {
    opacity: 1;
    transform: translateY(0);
}

.cta-text {
    font-family: var(--font-primary);
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    font-weight: 300;
    color: var(--muted-lavender);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.cta-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    background: var(--ember-orange);
    color: var(--bone-white);
    text-decoration: none;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    overflow: hidden;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    background: var(--electric-tangerine);
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(232, 100, 44, 0.3);
}

.cta-button-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50px;
    border: 2px solid var(--electric-tangerine);
    top: 0;
    left: 0;
    transform: scale(1);
    opacity: 0;
    transition: transform 0.5s ease, opacity 0.5s ease;
}

.cta-button:hover .cta-button-ring {
    transform: scale(1.2);
    opacity: 0.5;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .huddle-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .reform-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero-halo {
        width: 400px;
        height: 400px;
    }

    .ring-5,
    .ring-6 {
        display: none;
    }

    .nav-trigger {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
    }

    .silhouettes {
        width: 300px;
    }

    .huddle-card,
    .reform-card {
        padding: 2rem 1.5rem;
    }

    .break-statement {
        font-size: clamp(1.5rem, 5vw, 2.5rem);
    }
}

@media (max-width: 480px) {
    .hero-letter {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .section-heading {
        font-size: clamp(1.8rem, 6vw, 3rem);
    }

    .huddle-title {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }
}

/* ============================================
   Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .ring {
        animation: none;
    }

    .particle {
        animation: none;
    }

    .hero-letter,
    .gathering-content,
    .huddle-title,
    .huddle-card,
    .break-content,
    .reform-heading,
    .reform-card,
    .reform-cta,
    .hero-tagline {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .connect-line {
        stroke-dasharray: none;
        stroke-dashoffset: 0;
    }
}